I have been struggling to get a Wacom Intuos working seamlessly with Qubes 4.0. I have a sys-usb qube, and I have xournalpp software running in a personal-drawing qube. The Wacom Intuous is attached to the computer via USB.
If I change /etc/qubes-rpc/policy/qubes.InputTablet to allow from sys-usb to dom0, then I am able to use the Wacom pen to control everything, including the mouse cursor. This does allow me to draw in the xournalpp program within the personal-drawing qube (and across any qube, including dom0). It also moves the cursor as I move the pen so I can see where I am going to draw. However, this method has a significant drawback because it does not allow the tablet to pass through the pressure values of the pen.
I have also tried attaching the Wacom tablet directly to the personal-drawing tablet. This does allow me to draw in the xournalpp program within the personal-drawing qube only. It also allows the pressure sensitivity to be used by the xournalpp program. However, it does not move the cursor as I move the pen, so I cannot see where I am about to draw.
From searching, it seems this is the most relevant comment on this topic, which describes what I am experiencing: issues with graphic tablet · Issue #2715 · QubesOS/qubes-issues · GitHub
Has anyone got a tablet pen working with Qubes that includes pressure sensitivity and the cursor being visible? If so, how?